1
Stephen C Paspek: Conversion of high boiling liquid organic materials to lower boiling materials. The Standard Oil Company, L W Evans, J G Curatolo, T W Gilbert, June 20, 1989: US04840725 (74 worldwide citation)

An improvement in the conversion of high boiling liquid organic materials to low boiling materials, and more particularly, in the process of converting heavy hydrocarbon oil feedstocks to fuel range liquids is described. In its broadest aspects, the invention comprises a process for converting high ...


2
Andiappan K S Murthy, Kundanbhai M Patel, Alex Y Bekker: Production of light hydrocarbons by treatment of heavy hydrocarbons with water. Allied Corporation, R C Stewart II, A M Doernberg, G H Fuchs, September 24, 1985: US04543177 (59 worldwide citation)

A process is disclosed for converting heavy hydrocarbons into light hydrocarbons which comprises contacting, in a first zone, a heavy hydrocarbon having an API gravity at 25.degree. C. of less than about 20, such as Boscan heavy crude oil and tar sand bitumen, with a liquid comprising water, in the ...


3
Tsoung Y Yan: Removal of mercury from natural gas and liquid hydrocarbons utilizing downstream guard chabmer. Mobil Oil Corporation, A J McKillop, M G Gilman, V D Harrison, November 24, 1987: US04709118 (54 worldwide citation)

Hydrocarbon liquids an gas, particularly gas to be processed in LNG plants, are treated to remove mercury by contacting them with free bismuth or tin or a mixture of these on silica, alumina, or other type of non-reactive base. The sorbent is prepared by milling together the oxide of bismuth or tin ...


4
Chakka Sudhakar, Regis J Pellet, Mahendra Somabhai Patel: Catalytic hydrocarbon upgrading process requiring no external hydrogen supply. Texaco, Henry H Gibson, Carl G Ries, October 6, 1998: US05817229 (49 worldwide citation)

A hydrocarbon feedstock is brought into contact with activated carbon at a temperature of about 300.degree. to about 650.degree. C. and a pressure of about 0-1000 psig in the absence of added hydrogen to reduce the content of aromatic, sulfur and nitrogen compounds contained therein and to simultane ...


5
Andiappan K S Murthy, Kundanbhai M Patel, Alex Y Bekker: Process for production of light hydrocarbons by treatment of heavy hydrocarbons with water. Allied Corporation, Thomas D Hoffman, Gerhard H Fuchs, May 1, 1984: US04446012 (34 worldwide citation)

A process for converting heavy hydrocarbons into light hydrocarbons which comprises contacting, in a first zone, a heavy hydrocarbon having an API gravity at 25.degree. C. of less than about 20, such as Boscan heavy crude oil and tar sand bitumen, with a liquid comprising water, in the absence of ex ...


6
Shihabi David Said, Lutner John Dennis: Method for maintaining activity of zeolite catalysts. Mobil Oil, June 2, 1983: GB2109402-A (16 worldwide citation)

Zeolites used in catalytic conversion processes such as cracking, hydrocracking and dewaxing are activated by co-feeding (a) water and/or a water precursor and/or (b) hydrogen sulphide and/or a hydrogen sulphide precursor with the feedstock. Suitable water precursors include alcohols such as methano ...


7
Lillian A Rankel: Method for removing contaminants from hydrocarbonaceous fluid. Mobil Oil Corporation, Charles A Huggett, James F Powers Jr, John K AboKhair, January 3, 1984: US04424118 (14 worldwide citation)

The present invention relates to a method for removing contaminants such as arsenic from a hydrocarbonaceous fluid which consists essentially of the crude, or a fraction thereof, obtained from oil shale, solid coal, or tar sands by non-catalytically heat treating the hydrocarbonaceous fluid at a tem ...


8
Simon G Kukes, Marvin M Johnson, Gerhard P Nowack: Demetallization of heavy oils. Phillips Petroleum Company, December 20, 1983: US04421638 (14 worldwide citation)

An improved process for removing metals from heavy oils and other hydrocarbon feed streams is disclosed. The process includes adding phosphorus sulfide to the hydrocarbon feed stream under suitable demetallizing conditions. It is believed that phosphorus sulfide reacts with the metals contained in t ...


9
Hiroshi Kitagawa, Teruyuki Onodera, Toshiyuki Fukushima, Yoriyuki Hayashi: Method of removing arsenic in hydrocarbons. Osaka Petrochemical, Toyo CCI Kabushiki Kaisha, Ladas & Parry, July 31, 1984: US04462896 (13 worldwide citation)

Method of removing arsenic in hydrocarbons such as LPG, wherein arsenic compounds in the gaseous hydrocarbon are reacted with a metal oxide catalyst and adsorbed on the catalyst and partially oxidized by the catalyst.


10
Stanley J Frey, Masami Kojima: Catalytic distillation process for mercaptan and olefin removal. UOP, Thomas K McBride, John F Spears Jr, August 19, 1997: US05659106 (9 worldwide citation)

Mercaptans and olefins are removed from paraffin-rich feed streams through the use of dual zone catalytic distillation in the substantial absence of hydrogen. The mercaptans are reacted with the olefins using a first catalyst such as a sulphonated resin to form less volatile thioethers removed as pa ...